EMC Filtering of Three-Phase PWM Converters

In modern Power Electronics systems high switching
frequencies are employed to increase power density,
but EMC filter components are responsible for a large
volumetric occupation of the power system. In some
cases the EMC filters required to fulfill EMC
regulations cover more than 30% of the total system
volume. In a world where space gets expensive, the
volumetric reduction of the components in EMC filters
is of great importance aiming for reduced dimensions.
This work proposed modeling techniques for the
generation and propagation of conducted emissions in
three-phase converters and filter concepts aiming to
meet EMC standards and reduce the volume of the EMC
filters.
Optimizing EMC filters requires several steps to be
performed, which are described here focusing on
three-phase PWM converters.
Finally, a discussion quantifying how much filters
strongly impact the volume of three-phase PWM
converter systems is preformed.

Autorentext

Marcelo Lobo Heldwein (Dr.Sc. ETH Zurich) was born in Brazil. He acquired experience working for the power electronics industry and academy. He has over 30 articles in international conferences and journal. Dr. Heldwein is currently working as a Postdoctoral Fellow at the Power Electronics Institute, Federal University of Santa Catarina, Brazil.

Klappentext

In modern Power Electronics systems high switching frequencies are employed to increase power density, but EMC filter components are responsible for a large volumetric occupation of the power system. In some cases the EMC filters required to fulfill EMC regulations cover more than 30% of the total system volume. In a world where space gets expensive, the volumetric reduction of the components in EMC filters is of great importance aiming for reduced dimensions. This work proposed modeling techniques for the generation and propagation of conducted emissions in three-phase converters and filter concepts aiming to meet EMC standards and reduce the volume of the EMC filters. Optimizing EMC filters requires several steps to be performed, which are described here focusing on three-phase PWM converters. Finally, a discussion quantifying how much filters strongly impact the volume of three-phase PWM converter systems is preformed.